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    Home » Holiday Science » Christmas Science » Ice Activities – Melting Stars

    Ice Activities – Melting Stars

    Modified: Oct 27, 2019 · Published: Dec 21, 2018 by Emma Vanstone · This post may contain affiliate links · Leave a Comment

    Today’s advent activity is super simple and can be extended for kids of all ages! All you need to do is freeze some star shapes ( or any shape ) and then use them to learn about changes of state and other ice activities.

    Frozen star shaped ice - ice activity for kids #ChristmasScience

    Ice Science Activity 1

    Take two stars and place each into  a separate bowl then try slowly dripping the same amount of cold water over one and warm water over the other. Record how long each takes to melt.

    Ice Science Activity 2

    Wrap one ice star in bubble wrap and one in paper or cling film and leave on a windowsill. Check on the ice every 5 minutes and record which melts first.

    Ice Science Activity 3

    Carefully sprinkle salt over one ice star, what happens?

    Did you know salt lowers the freezing point of water? This means it melts faster when salt is added as the salt lowers the freezing point of the ice, this is known as freezing point depression. The more salt you add the lower the freezing point. This is why salt and grit are added to roads in winter, the salt means the water doesn’t freeze unless a temperature lower than freezing point is reached.

    You can test this out but placing a ziploc bag containing ice and salt into your freezer. Does the water freeze?

    More Ice Activities for Kids

    Try painting over the surface of the ice. As the ice melts the surface becomes more slippy, making it feel lovely to paint over. You could paint a lovely Christmassy scene!

    Painting on ice

    How about making some delicious ice cream in a bag?

    We love these ice decorations too!

    ice decorations


    Why does water freeze?

    Water can be a solid, liquid or gas. In liquid form water particles can move around freely, so water takes the shape of whatever container you pour it into.

    If you cool water down to its freezing point the movement of the particles slows down and they particles become tightly packed together, which means its shape cannot change easily. We call this ice!

    Why is ice sticky?

    Ice feels sticky because when you touch it, the ice immediately freezes the moisture in your skin, making it feel sticky. You should always leave ice to melt a little before touching it.

    Don’t forget to try our other science advent calendar activities.

    Ice Stars for ice activities for kids #winterscience #iceactivities #ice #iceexperiments #scienceforkids

    Last Updated on October 27, 2019 by Emma Vanstone

    « Learning Toys for Little Ones
    Things to do with leftover Candy Canes »

    Safety Notice

    Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

    These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

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